Observation 30220: Stropharia caerulea Kreisel

When: 2009-11-28

Collection location: St. Genis, France [Click for map]

Who: Douglas Smith (douglas)

No specimen available

Found under spruce and pine.

Funny little guy, found under a pine tree, near a spruce tree. The cap is viscid, there are veil remnants in a ring on the median of the stipe, and they are black with spores. The base of the mushroom has bluish to blue-green stains.

Popped a gill under the scope to get some more info here…

The first micro-shot is of the gill edge at 400x in KOH. Here these are lots of chrysocystidia obs., with the golden centers. There were also lots of pleurocystidia obs., also chrysocystidia.

The second micro-shot is of the spores at 1000x in KOH. Here they are ellipsoid, smooth, light brown, fairly thick-walled, with a slight germ-pore. Fairly variable in size, 7-9 um long.

With the dark spores, and the chrysocystidia, it looks like this is Stropharia. Not sure which one though…

Species Lists



Proposed Names

57% (1)
Recognized by sight
85% (1)
Recognized by sight: Blueish, but not staining blue. Fading to buff in age.
Used references: Flora Agaricina Neerlandica Volume 4 pages 53 – 56
Based on microscopic features: Spores 8 – 9 microns long, cheilocystidia with a thin neck

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2009-12-13 11:57:39 CST (-0500)
Last modified: 2009-12-13 11:57:39 CST (-0500)
Viewed: 44 times, last viewed: 2018-07-16 02:47:11 CDT (-0400)
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